Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccb96f7abf5f0104…

MALICIOUS

PDF

40.2 KB Created: 2020-08-26 13:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76e7af6f80d9883e99cbe6237a504c27 SHA-1: 6c3e8ca3e87f4f8aa7aadd03d536ad264a3794d9 SHA-256: ccb96f7abf5f0104f56a6e296eff267d896c290adf0a79bf10a7ba934a4b196d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, characteristic of a link farm designed to manipulate search engine results or distribute malicious content. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=como+realizar+ensambles+en+solidworks'. The document body itself contains garbled text and some of the extracted URLs, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=como+realizar+ensambles+en+solidworks In PDF document text
    • http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdfIn PDF document text
    • http://vadexud.pvgindy.com/uploads/1/3/0/7/130776106/rokor_lasogatomi_sokomajorotomi.pdfIn PDF document text
    • http://files.uclarisestudy.com/uploads/1/3/2/6/132681617/872543.pdfIn PDF document text
    • http://files.tiffinindia.ca/uploads/1/3/2/3/132303270/xaxanenafalubozidolu.pdfIn PDF document text
    • http://detifata.dugeogsoc.com/uploads/1/3/1/3/131398368/xebeduxoripa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6878/2757/files/xifetoguzudag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2962/6781/files/developing_tactics_for_listening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/wowubulerel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/wolujixedodazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4659/5734/files/best_android_graph_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3281/3469/files/16443330804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7705/1044/files/gutunapazoxawirariw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/all_hail_shadow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/safojejupulat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/44386142986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4410/8445/files/matumarirugi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6091 5220 bytes
SHA-256: c8bd7cf1342d82397cb4a8075b4233827a237233dc4450aed9d3afa7e56f97dc
font_01_sfnt_off0000724b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724B 10200 bytes
SHA-256: 0fcac497f28594dbfd7a79792ba29bf662bc94e81cc90c15ebaf08dd763db5d7

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